package com.ruoyi.web.controller.monitor;

import com.ruoyi.common.annotation.HasPermi;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.system.domain.SysCache;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.*;

/**
 * 缓存监控
 * 
 * @author ruoyi
 */
@RestController
@RequestMapping("/monitor/cache")
public class CacheController
{
    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @HasPermi("monitor:cache:list")
    @GetMapping()
    public AjaxResult getInfo() throws Exception
    {
        Properties info = (Properties) redisTemplate.execute((RedisCallback<Object>) connection -> connection.info());
        Properties commandStats = (Properties) redisTemplate.execute((RedisCallback<Object>) connection -> connection.info("commandstats"));
        Object dbSize = redisTemplate.execute((RedisCallback<Object>) connection -> connection.dbSize());

        Map<String, Object> result = new HashMap<>(3);
        result.put("info", info);
        result.put("dbSize", dbSize);

        List<Map<String, String>> pieList = new ArrayList<>();
        commandStats.stringPropertyNames().forEach(key -> {
            Map<String, String> data = new HashMap<>(2);
            String property = commandStats.getProperty(key);
            data.put("name", StringUtils.removeStart(key, "cmdstat_"));
            data.put("value", StringUtils.substringBetween(property, "calls=", ",usec"));
            pieList.add(data);
        });
        result.put("commandStats", pieList);
        return AjaxResult.success(result);
    }

    @HasPermi("monitor:cache:list")
    @GetMapping("/getNames")
    public AjaxResult cache()
    {
        List<SysCache> list=new ArrayList<>();
        Set<String> keys=redisTemplate.keys("*");
        for(String key:keys){
            SysCache cache=new SysCache();
            cache.setCacheName(key);
            list.add(cache);
        }
        return AjaxResult.success(list);
    }

    @HasPermi("monitor:cache:list")
    @GetMapping("/getKeys/{cacheName}")
    public AjaxResult getCacheKeys(@PathVariable String cacheName)
    {
        Set<Object> cacheKyes = redisTemplate.opsForHash().keys(cacheName);
        return AjaxResult.success(cacheKyes);
    }

    @HasPermi("monitor:cache:list")
    @GetMapping("/getValue/{cacheName}/{cacheKey}")
    public AjaxResult getCacheValue(@PathVariable String cacheName, @PathVariable String cacheKey)
    {
        Object cacheValue = redisTemplate.opsForHash().get(cacheName,cacheKey);
        SysCache sysCache = new SysCache(cacheName, cacheKey, cacheValue);
        return AjaxResult.success(sysCache);
    }

    @HasPermi("monitor:cache:list")
    @DeleteMapping("/clearCacheName/{cacheName}")
    public AjaxResult clearCacheName(@PathVariable String cacheName)
    {
        redisTemplate.delete(cacheName);
        return AjaxResult.success();
    }

    @HasPermi("monitor:cache:list")
    @DeleteMapping("/clearCacheKey/{cacheName}/{cacheKey}")
    public AjaxResult clearCacheKey(@PathVariable String cacheName,@PathVariable String cacheKey)
    {
        redisTemplate.opsForHash().delete(cacheName,cacheKey);
        return AjaxResult.success();
    }

}
